<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0,user-scalable=no">
    <!-- 一定不要忘记引入bootstrap 的样式文件 -->
    <link rel="stylesheet" href="/Bootstrap/bootstrap/css/bootstrap.min.css">
    <style>
        /* 利用我们自己写的样式覆盖原先的样式 */
        .container{
            background-color: pink;
            padding: 0;
        }
        .container-fluid{
            background-color: black;
        }
    </style>
   
    <title>布局容器</title>
</head>
<body>
    <div class="container">
        1
    </div>

    <div class="container-fluid">
        2
    </div>
</body>
</html>